--- a/gcc/config/i386/linux.h	Tue May 25 18:58:51 2010 +0900
+++ b/gcc/config/i386/linux.h	Tue Mar 22 17:18:12 2011 +0900
@@ -1,6 +1,6 @@
 /* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
    Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2004, 2005,
-   2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
    Contributed by Eric Youngdale.
    Modified for stabs-in-ELF by H.J. Lu.
 
@@ -85,27 +85,18 @@
 /* Provide a LINK_SPEC appropriate for Linux.  Here we provide support
    for the special GCC options -static and -shared, which allow us to
    link things in one of these three modes by applying the appropriate
-   combinations of options at link-time. We like to support here for
-   as many of the other GNU linker options as possible. But I don't
-   have the time to search for those flags. I am sure how to add
-   support for -soname shared_object_name. H.J.
-
-   I took out %{v:%{!V:-V}}. It is too much :-(. They can use
-   -Wl,-V.
+   combinations of options at link-time.
 
    When the -shared link option is used a final link is not being
    done.  */
 
-/* If ELF is the default format, we should not use /lib/elf.  */
-
 /* These macros may be overridden in k*bsd-gnu.h and i386/k*bsd-gnu.h. */
 #define LINK_EMULATION "elf_i386"
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 
 #undef  ASM_SPEC
 #define ASM_SPEC \
-  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} --32 \
-  %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
+  "--32 %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
 
 #undef  SUBTARGET_EXTRA_SPECS
 #define SUBTARGET_EXTRA_SPECS \
@@ -115,11 +106,10 @@
 #undef	LINK_SPEC
 #define LINK_SPEC "-m %(link_emulation) %{shared:-shared} \
   %{!shared: \
-    %{!ibcs: \
-      %{!static: \
-	%{rdynamic:-export-dynamic} \
-	%{!dynamic-linker:-dynamic-linker %(dynamic_linker)}} \
-	%{static:-static}}}"
+    %{!static: \
+      %{rdynamic:-export-dynamic} \
+      -dynamic-linker %(dynamic_linker)} \
+      %{static:-static}}"
 
 /* Similar to standard Linux, but adding -ffast-math support.  */
 #undef  ENDFILE_SPEC
@@ -209,10 +199,17 @@
 /* The stack pointer needs to be moved while checking the stack.  */
 #define STACK_CHECK_MOVING_SP 1
 
+/* Static stack checking is supported by means of probes.  */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
 /* This macro may be overridden in i386/k*bsd-gnu.h.  */
 #define REG_NAME(reg) reg
 
 #ifdef TARGET_LIBC_PROVIDES_SSP
 /* i386 glibc provides __stack_chk_guard in %gs:0x14.  */
 #define TARGET_THREAD_SSP_OFFSET	0x14
+
+/* We steal the last transactional memory word.  */
+#define TARGET_CAN_SPLIT_STACK
+#define TARGET_THREAD_SPLIT_STACK_OFFSET 0x30
 #endif